[neon-notifications] Dev Required: c4core - 0.2.9

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_c4core/337/display/redirect

#<Debian::UScan::DEHS::Package:0x00007d8ffeeaa4f0 @name="c4core", @debian_uversion="0.2.2", @debian_mangled_uversion="0.2.2", @upstream_version="0.2.9", @upstream_url="https://github.com/biojppm/c4core/releases/download/v0.2.9/c4core-0.2.9-src.tgz", @status="Newer version available">